WO2023088123A1 - 无源辐射器及音箱 - Google Patents

无源辐射器及音箱 Download PDF

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Publication number
WO2023088123A1
WO2023088123A1 PCT/CN2022/130349 CN2022130349W WO2023088123A1 WO 2023088123 A1 WO2023088123 A1 WO 2023088123A1 CN 2022130349 W CN2022130349 W CN 2022130349W WO 2023088123 A1 WO2023088123 A1 WO 2023088123A1
Authority
WO
WIPO (PCT)
Prior art keywords
passive radiator
open end
ring
inner edge
hollow area
Prior art date
Application number
PCT/CN2022/130349
Other languages
English (en)
French (fr)
Inventor
朱振财
朱生林
Original Assignee
惠州视维新技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州视维新技术有限公司 filed Critical 惠州视维新技术有限公司
Publication of WO2023088123A1 publication Critical patent/WO2023088123A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the present application relates to the technical field of sound boxes, in particular to a passive radiator and a sound box.
  • speakers used in TV sets and notebook computers usually adopt an open speaker structure, and the low-frequency response characteristics are improved by setting an inverter tube, but it will also bring about sound coloration in the inverter tube, resonance of the guide tube, and phase inverter.
  • Various sound defects such as internal high-frequency sound reflected by the tube.
  • the passive radiator adopting the related technology can solve some defects of the inverted tube design, but there is a defect of sound pressure distortion.
  • the embodiment of the present application provides a passive radiator, which forms a hollow area surrounded by the passive radiator;
  • the passive radiator includes:
  • a vibrating plate arranged around the hollow area for vibrating motion
  • the first ring is connected to the side of the vibrating plate close to the hollow area to support the side of the vibrating plate close to the hollow area;
  • the second ring is connected to the side of the vibrating plate away from the hollow area, and is used to support the side of the vibrating plate away from the hollow area.
  • the embodiment of the present application also provides a passive radiator sound box, including a passive radiator, and the passive radiator is enclosed to form a hollow area; the passive radiator includes:
  • a vibrating plate arranged around the hollow area for vibrating motion
  • a first ring connected to a side of the vibrating plate close to the hollow area, for supporting a side of the vibrating plate close to the hollow area;
  • the second ring is connected to the side of the vibrating plate away from the hollow area, and is used to support the side of the vibration plate away from the hollow area, and the opening direction of the first ring is the same as that of the second The opening direction of the ring is consistent;
  • first inner edge portion disposed on a side of the first ring close to the hollow area, the first inner edge portion is disposed around the first ring;
  • the first outer edge portion is disposed on a side of the second ring away from the hollow area, and the first outer edge portion is disposed around the second ring.
  • the first ring is arranged on the side of the vibration plate close to the hollow area
  • the second ring is arranged on the side of the vibration plate away from the hollow area, so that the first ring and the second ring surround the vibration plate
  • the setting method supports the vibrating plate to maintain the balance and stability of the vibrating plate, so that the vibrating plate can maintain linear vibration under the action of large dynamic resonant air, and avoid sound pressure distortion caused by nonlinear vibration such as shaking or swinging .
  • FIG. 1 is a schematic diagram of the overall structure of a first passive radiator provided in an embodiment of the present application.
  • FIG. 2 is a top view of the passive radiator shown in FIG. 1 .
  • FIG. 3 is a cross-sectional view of the passive radiator shown in FIG. 2 along the direction P1-P1.
  • FIG. 4 is a right side view of the passive radiator shown in FIG. 2 .
  • FIG. 5 is a cross-sectional view of the passive radiator shown in FIG. 4 along the direction P2-P2.
  • Fig. 6 is a sectional view of the passive radiator shown in Fig. 5 and a structural schematic diagram after removing the weight block.
  • Fig. 7 is a schematic structural diagram of the weight block shown in Fig. 5 .
  • FIG. 8 is a schematic diagram of the overall structure of the second passive radiator provided by the embodiment of the present application.
  • FIG. 9 is a cross-sectional view of the passive radiator shown in FIG. 8 along the direction P3-P3.
  • FIG. 10 is a cross-sectional view of the passive radiator shown in FIG. 8 along the direction P4-P4.
  • Fig. 11 is a schematic diagram of the overall structure of the third passive radiator provided by the embodiment of the present application.
  • FIG. 12 is a cross-sectional view of the passive radiator shown in FIG. 11 along the direction P5-P5.
  • FIG. 13 is a cross-sectional view of the passive radiator shown in FIG. 11 along the direction P6-P6.
  • Fig. 14 is a schematic diagram of the overall structure of the first passive radiator speaker provided by the embodiment of the present application.
  • FIG. 15 is a first exploded view of the passive radiator enclosure shown in FIG. 14 .
  • FIG. 16 is a second exploded view of the passive radiator enclosure shown in FIG. 14 .
  • FIG. 17 is a front view of the passive radiator speaker box shown in FIG. 14 .
  • Fig. 18 is a sectional view of the passive radiator sound box shown in Fig. 17 along the direction P7-P7.
  • Fig. 19 is a cross-sectional view of the second passive radiator sound box provided by the embodiment of the present application.
  • Fig. 20 is a cross-sectional view of a third type of passive radiator sound box provided by the embodiment of the present application.
  • Fig. 21 is a cross-sectional view of a fourth passive radiator sound box provided by the embodiment of the present application.
  • Fig. 22 is a cross-sectional view of a fifth passive radiator sound box provided by the embodiment of the present application.
  • Fig. 23 is a cross-sectional view of the sixth passive radiator sound box provided by the embodiment of the present application.
  • the embodiment of the present application provides a passive radiator 20 .
  • the passive radiator 20 includes a vibrating plate 22 , a first ring 24 and a second ring 26 .
  • the passive radiator 20 surrounds and forms a hollow area 201 .
  • the vibrating plate 22 is arranged around the hollow area 201 for vibrating motion.
  • the first ring 24 is connected to the side of the vibrating plate 22 close to the hollow area 201 for supporting the side of the vibrating plate 22 close to the hollow area 201 .
  • the second ring 26 is connected to the side of the vibrating plate 22 away from the hollow area 201 to support the side of the vibrating plate 22 away from the hollow area 201 .
  • the opening direction of the first ring 24 is consistent with the opening direction of the second ring 26 .
  • the first ring 24 is arranged on the side of the vibration plate 22 close to the hollow area 201
  • the second ring 26 is arranged on the side of the vibration plate 22 away from the hollow area 201.
  • One side so that the first ring 24 and the second ring 26 support the vibration plate 22 in a way that surrounds the vibration plate 22, and maintain the balance and stability of the vibration plate 22, so that the vibration plate 22 is in a large dynamic resonant air. It can also maintain linear vibration under action, avoiding sound pressure distortion caused by nonlinear vibration such as shaking or swinging. It should be explained that the linear vibration of the vibrating plate 22 refers to the repeated movement of the vibrating plate 22 along a vibrating axis.
  • the vibrating plate 22 includes a load-bearing block 223, which is used to bear or adjust the vibrating mass of the vibrating plate 22, thereby enhancing the low-frequency sound pressure, so that the sound Fuller.
  • the vibrating plate 22 also includes a vibrating membrane 225 and an accommodation chamber 227, the accommodating chamber 227 is formed inside the vibrating membrane 225, and the accommodating chamber 227 is arranged in a manner surrounding the hollow area 201 ;
  • the weight block 223 is arranged in the accommodation chamber 227;
  • the weight block 223 moves relative to the containing chamber 227 , it will cause the vibrating plate 22 to vibrate nonlinearly, resulting in sound pressure distortion.
  • the inner wall of the accommodation chamber 227 is in close contact with the surface of the weight block 223 to prevent the weight block 223 from moving relative to the accommodation chamber 227 under the action of the large dynamic resonant air, so that the vibrating plate 22 maintains linear vibration and the sound pressure is constant. will be distorted.
  • the side of the weight block 223 close to the hollow area 201 is the inner edge side 2232
  • the side of the weight block 223 away from the hollow area 201 is the outer edge side 2233 ;
  • the inner edge side 2232 A plurality of evenly distributed inner edge notches 2234 are provided, and a plurality of evenly distributed outer edge notches 2235 are provided on the outer edge side 2233 .
  • the accommodating chamber 227 includes a plurality of first protrusions 2273 , the first protrusions 2273 correspond to the inner edge gaps 2234 one by one, and the first protrusions 2273 extend into and fill the inner edge gaps 2234 ,
  • the first protruding portion 2273 is used to limit the notch 2234 on the inner edge;
  • the raised portion 2275 extends into and fills the outer edge gap 2235 , and the second raised portion 2275 is used to limit the outer edge gap 2235 .
  • first protrusion 2273 is used to limit the inner notch 2234
  • second protrusion 2275 is used to limit the outer notch 2235, so as to prevent the inner notch 2234 from protruding relative to the first Part 2273 is displaced, and the outer edge notch 2235 is prevented from being displaced relative to the second raised portion 2275, thereby preventing the weight block 223 from moving relative to the accommodation chamber 227 under the action of the large dynamic resonant air, so that the vibrating plate 22 remains Linear vibration, sound pressure will not be distorted.
  • the weight of the weight block 223 can be adjusted to a desired weight range by setting the inner notch 2234 and the outer notch 2235 .
  • the number of the plurality of inner notches 2234 is the same as the number of the plurality of outer notches 2235, and the shape and size of the inner notches 2234 are the same as those of the outer notches 2235.
  • a plurality of inner notches 2234 and a plurality of outer notches 2235 are arranged in the order of inner notches 2234, outer notches 2235, inner notches 2234, and outer notches 2235 along the circumferential direction of the hollow region 201, It is used to distribute the weight of the weight block 223 evenly, so that the vibrating membrane 225 can bear the weight of the weight block 223 evenly, thereby maintaining the balance and stability of the vibrating membrane 225, so that the vibrating membrane 225 can also be used under the action of large dynamic resonant air. Keep vibrating linearly.
  • the hollow area 201 is a circular area; the vibrating plate 22 is a torus, and the vibrating membrane 225 is made of rubber; the load block 223 is provided with an inner notch 2234 and an outer notch 2235 torus.
  • the weight block 223 can be made of metal.
  • the passive radiator 20 further includes a first inner edge portion 23 and a first outer edge portion 25 .
  • the first inner edge portion 23 is disposed on a side of the first ring 24 close to the hollow area 201 , and the first inner edge portion 23 is disposed around the first ring 24 .
  • the first outer edge portion 25 is disposed on a side of the second ring 26 away from the hollow area 201 , and the first outer edge portion 25 is disposed around the second ring 26 .
  • the embodiment of the present application provides various passive radiators 20 with different structures.
  • the passive radiator 20 of the first structure provided by the embodiment of the present application includes a vibrating plate 22 .
  • the vibrating plate 22 includes a vibrating membrane 225 and a weight 223 .
  • An accommodation cavity 227 is formed in the vibrating membrane 225 .
  • the weight block 223 is disposed in the accommodation chamber 227 .
  • the passive radiator 20 of the second structure provided by the embodiment of the present application includes a vibrating plate 22 .
  • the vibrating plate 22 includes a vibrating membrane 225 and a weight 223 .
  • the diaphragm 225 includes a first side 2252 and a second side 2254 opposite to each other. The direction of the second side 2254 toward the first side 2252 is the same as the opening direction of the first ring 24 .
  • the weight block 223 is bonded to the first side 2252 .
  • the passive radiator 20 of the third structure provided by the embodiment of the present application includes a vibrating plate 22 .
  • the vibrating plate 22 includes a vibrating membrane 225 and a weight 223 .
  • the diaphragm 225 includes a first side 2252 and a second side 2254 opposite to each other. The direction of the second side 2254 toward the first side 2252 is the same as the opening direction of the first ring 24 .
  • the weight block 223 is bonded to the second side 2254 .
  • the embodiment of the present application also provides a passive radiator speaker 10 .
  • Passive radiator enclosure 10 includes a passive radiator 20 .
  • the passive radiator 20 is a passive sounding unit and can be used to adjust the bass.
  • the overall tone of the passive radiator speaker 10 can be adjusted through the passive radiator 20 .
  • the load-bearing block 223 is used to improve the resonance of the passive radiator speaker 10 and reduce the acceleration generated by the passive radiator speaker 10 during operation, so that the passive radiator speaker 10 can effectively reduce the Vibrato risk.
  • the passive radiator speaker 10 also includes a sounding main body 40 and a bracket 60 .
  • the sounding body 40 is configured to convert electrical energy into acoustic energy. It can be understood that, after the pronunciation main body 40 is electrified, the electrical energy is converted into mechanical energy first, and then the mechanical energy is converted into sound energy.
  • the passive radiator 20 is disposed on the bracket 60 .
  • the bracket 60 is used to fix the passive radiator 20 and prevent the passive radiator 20 from collapsing.
  • the bracket 60 encloses and forms a first accommodation space 62 , where the sounding main body 40 is disposed in the first accommodation space 62 ; the bracket 60 is used to support the sounding main body 40 and the passive radiator 20 .
  • the sounding body 40 is located on the side of the passive radiator 20 facing the first direction H1.
  • the sounding body 40 includes drum paper 402 , elastic wave 404 , voice coil 406 , iron sheet 408 , first magnet 403 , second magnet 405 and U-iron 407 arranged in sequence along a common central axis.
  • the first inner edge portion 23 is connected to the second open end 4024 , and the first inner edge portion 23 is used to support the second open end 4024 so that the drum paper 402 can be supported.
  • the bracket 60 and the sounding body 40 are arranged along the central axis. It should be noted that, for the purpose of convenient description, the direction of the passive radiator 20 toward the first accommodation space 62 is defined as a first direction H1. The direction opposite to the direction in which the passive radiator 20 faces the first accommodation space 62 is defined as a second direction H2.
  • the opening direction of the first ring 24 and the second ring 26 faces the first direction H1 .
  • the opening direction of the first ring 24 and the second ring 26 faces the second direction H2 .
  • the pronunciation main body 40 includes drum paper 402 .
  • the drum paper 402 can also be called a vibrating plate or a cone, which has a decisive influence on the performance and sound quality of the passive radiator speaker 10 .
  • the drum paper 402 includes a first open end 4022 and a second open end 4024 opposite and spaced apart.
  • the central axis of the first open end 4022 , the central axis of the second open end 4024 and the central axis of the first inner edge portion 23 are collinear.
  • the diameter of the first open end 4022 is greater than the diameter of the second open end 4024 .
  • the first open end 4022 is connected to the first inner edge portion 23 .
  • the second open end 4024 is located on the side of the first open end 4022 facing the first direction H1; the first outer edge portion 25 is connected to the bracket 60 .
  • the pronunciation main body 40 also includes a voice coil 406 .
  • the voice coil 406 conducts electricity, it generates motion in the magnetic field, thereby driving the drum paper 402 to vibrate.
  • the voice coil 406 includes a third open end 4062 and a fourth open end 4064 opposite and spaced apart.
  • the central axis of the third open end 4062 , the central axis of the fourth open end 4064 and the central axis of the first inner edge portion 23 are collinear.
  • the third open end 4062 is set to be inserted into the second open end 4024, and the third open end 4062 is located between the first open end 4022 and the second open end 4024, and the second open end 4024 is connected to the outer wall of the voice coil 406;
  • the fourth open end 4064 is located on the side of the third open end 4062 facing the first direction H1.
  • the pronunciation main body 40 also includes elastic waves.
  • the spring wave surround voice coil 406 is set.
  • the elastic wave is located on the side of the second open end 4024 facing the first direction H1.
  • the elastic wave is also located on the side opposite to the first direction H1 of the fourth open end 4064 .
  • the wave includes a wave body 4042 , a second inner edge portion 4044 and a second outer edge portion 4046 .
  • the elastic wave body 4042 is an annular piece with a wavy end surface.
  • the second inner edge portion 4044 is located on the side of the elastic wave body 4042 close to the voice coil 406 and is connected to the outer wall of the voice coil 406 .
  • the second outer edge portion 4046 surrounds the voice coil 406 and is located on the side of the spring wave body 4042 away from the voice coil 406 .
  • the elastic wave body 4042 , the central axis of the second inner edge portion 4044 , the central axis of the second outer edge portion 4046 and the central axis of the first inner edge portion 23 are collinear.
  • the elastic wave 404 can also be called a damper, which has a braking effect and a center maintaining effect.
  • the outer edge of the elastic wave 404 is glued to the bracket 60, and the neck of the elastic wave 404 is glued to the neck of the voice coil 406 and the drum paper 402, so that the voice coil 406 will not be magnetized to the iron when it moves in the magnetic gap.
  • the sheet 408, the first magnet 403 and the second magnet 405 also make the voice coil 406 and the drum paper 402 correctly connected and maintain the center, so it is also called a center retainer.
  • the performance of the elastic wave 404 is similar to that of the flange of the drum paper 402, which affects the bass resonance F0, and has a moderate elastic auxiliary effect on the connection of the drum paper 402, and can control the operation of the mode direction of the drum paper 402.
  • the sounding body 40 also includes an iron sheet 408 .
  • the iron piece 408 is disposed in the second accommodation space 4066 surrounded by the voice coil 406 ; the central axis of the iron piece 408 is collinear with the central axis of the first inner edge portion 23 .
  • the iron sheet 408 can also be called an iron plate, a washer or an upper sheet.
  • the iron piece 408 acts as a magnetic conductor, and can gather the N pole and S pole of the first magnet 403 and the second magnet 405 to the gap through the circuit, so that the gap generates a stronger magnetic field, and the voice coil 406
  • the web is just in the middle of the gap, so the inner diameter and thickness of the iron sheet 408 are very important.
  • the iron sheets 408 can be riveted and fixed at their joints and then reinforced with glue, so as to prevent the passive radiator speaker 10 from being extruded from the gap between the riveted joints when the passive radiator speaker 10 is working, resulting in poor airflow sound, that is, air leakage.
  • the sounding main body 40 also includes a first magnet 403 .
  • the first magnet 403 is disposed in the second receiving space 4066 .
  • the first magnet 403 is located on a side of the iron piece 408 facing the first direction H1.
  • the iron sheet 408 is stacked with the first magnet 403 .
  • the central axis of the first magnet 403 is collinear with the central axis of the first inner edge portion 23 .
  • the sounding main body 40 also includes a second magnet 405 .
  • a part of the second magnet 405 is located in the second accommodation space 4066 .
  • Another part of the second magnet 405 is located outside the second receiving space 4066 .
  • the second magnet 405 is located on a side of the first magnet 403 facing the first direction H1.
  • the second magnet 405 is stacked with the first magnet 403 .
  • the central axis of the second magnet 405 is collinear with the central axis of the first inner edge portion 23 .
  • the first magnet 403 and the second magnet 405 are used to generate a magnetic field, and the voice coil 406 is placed in the magnetic field.
  • the voice coil 406 When the audio current passes through the voice coil 406, the current will be subjected to the force of the magnetic field, causing the voice coil 406 to vibrate, driving and The drum paper 402 bonded together by the voice coil 406 vibrates to produce sound.
  • the pronunciation main body 40 also includes a U iron 407 .
  • the U iron 407 is connected with the bracket 60 .
  • the U iron 407 includes a bottom wall 4072 and a side wall 4074 .
  • the bottom wall 4072 and the side wall 4074 enclose a third receiving space 4076 .
  • the voice coil 406 is set in such a way that the fourth open end 4064 is inserted into the third receiving space 4076 .
  • the side of the second magnet 405 away from the first magnet 403 is connected to the bottom wall 4072 .
  • the central axis of the U-iron 407 is collinear with the central axis of the first inner edge portion 23 .
  • U iron 407 can also be called electrical iron, its texture is pure iron, and it is a component of the sound unit.
  • the main function of U iron 407 is to conduct magnetism under the condition of electrification, but it has no residual magnetism. The magnetic field disappears after the passive radiator speaker 10 is powered off, and its magnetism also disappears immediately. Therefore, the purity of the U iron will directly affect the working efficiency of the sound unit and some important parameters of the linear distortion.
  • the splint is related to the U iron, and the two are together the components of the sound unit. The thickness of the splint directly affects the stroke of the sound unit.
  • the U iron and the splint are very thick, and they can basically make the entire stroke of the voice coil cut the magnetic induction line.
  • the passive radiator speaker box 10 also includes a casing 50 .
  • the housing 50 encloses and forms a fourth receiving space 56 .
  • the bracket 60 and the sounding main body 40 are disposed in the fourth accommodation space 56 .
  • the housing 50 includes a first housing 52 and a second housing 54 connected to each other.
  • the first housing 52 and the second housing 54 can be locked and connected by screws.
  • the first case 52 may also be called a lower case, and the second case 54 may also be called an upper case.
  • the first shell 52 and the second shell 54 can be sealed by ultrasonic welding and locking screws.
  • the first shell 52 and the second shell 54 are used to prevent acoustic short circuit, to prevent the sound from the back and the sound from the front from canceling or interfering with each other, and to suppress the resonance of the passive radiator speaker 10 .
  • the embodiment of the present application provides various passive radiator speakers 10 with different structures.
  • the passive radiator speaker 10 of the first structure provided by the embodiment of the present application includes the passive radiation 20 of the first structure shown in FIGS. 1-3 , and the opening direction of the first ring 24 And the opening direction of the second ring 26 faces the first direction H2.
  • the passive radiator sound box 10 of the second structure provided by the embodiment of the present application includes the passive radiator 20 of the first structure shown in FIGS. 1-3 , and the opening of the first ring 24 The direction and the opening direction of the second collar 26 face the first direction H1.
  • the passive radiator sound box 10 of the third structure provided by the embodiment of the present application includes the passive radiator 20 of the second structure shown in FIGS. 8-10 , and the opening of the first ring 24
  • the direction and the opening direction of the second collar 26 face the second direction H2.
  • the passive radiator sound box 10 of the fourth structure provided by the embodiment of the present application includes the passive radiator 20 of the second structure shown in FIGS. 8-10 , and the opening of the first ring 24 The direction and the opening direction of the second collar 26 face the first direction H1.
  • the passive radiator sound box 10 of the fifth structure provided by the embodiment of the present application includes the passive radiator 20 of the third structure shown in FIGS. 11-13 , and the opening of the first ring 24
  • the direction and the opening direction of the second collar 26 face the second direction H2.
  • the passive radiator sound box 10 of the sixth structure provided by the embodiment of the present application includes the passive radiator 20 of the third structure shown in FIGS. 11-13 , and the opening of the first ring 24 The direction and the opening direction of the second collar 26 face the first direction H1.
  • the passive radiator speaker 10 also includes a connection terminal 30 and a wire 80 .
  • the wire 80 is used to communicate with the speaker and the output terminal of the power amplifier.
  • the connection terminal 30 is used to transmit the external signal to the wire, and then enter the voice coil 406 to make the coil obtain current.
  • the passive radiator speaker 10 further includes an accessory 70
  • the accessory 70 includes a dustproof cap 702 , a first decorative ring 704 , a second decorative ring 706 and a rubber pad 708 .
  • the dustproof cap 702 is used to prevent dust particles from entering the voice coil 406, so as to avoid affecting the normal operation of the voice coil 406 and the passive radiator speaker 10 due to the dust particles entering the voice coil 406; it can also suppress the passive radiator The divided vibration of the speaker 10 .
  • the first decorative ring 704 and the second decorative ring 706 are decorative rings designed for aesthetics, and the material may be anodized aluminum with CD pattern, PP material and the like.
  • the first decorative ring 704 is bonded to the junction of the drum paper 402 and the passive radiator 20 .
  • the second decorative ring 706 is bonded to the vibrating plate 22 of the passive radiator 20 .
  • the rubber pad 708 is used to reduce the acceleration of the speaker, and play a role in buffering and suppressing vibration.
  • the rubber pad 708 can be made of silica gel or rubber.

Abstract

提供一种无源辐射器及音箱，无源辐射器围合形成中空区域；无源辐射器包括：振动板，以环绕中空区域的方式设置，用以做振动运动；第一折环，与振动板靠近中空区域一侧连接，用以对振动板靠近中空区域一侧进行支撑；和第二折环，与振动板远离中空区域一侧连接，用以对振动板远离中空区域一侧进行支撑。

Description

无源辐射器及音箱
本申请要求于2021年11月19日提交中国专利局、申请号为202122862078.2、实用新型名称为“无源辐射器及音箱”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及音箱技术领域，尤其涉及一种无源辐射器及音箱。
 背景技术
现有技术中，应用于电视机、笔记本电脑上的音箱，通常采用开口音箱结构，通过设置倒相管提高低频响应特性，但又会带来倒相管内的声染色、导向管共振和倒相管反射出的内部高频声等种种声音缺陷。
 技术问题
采用相关技术的无源辐射器可以解决一部分倒相管设计的缺陷，但是存在声压失真的缺陷。
 技术解决方案
第一方面，本申请实施例提供一种无源辐射器，无源辐射器围合形成中空区域；无源辐射器包括：
振动板，以环绕中空区域的方式设置，用以做振动运动；
第一折环，与振动板靠近中空区域一侧连接，用以对振动板靠近中空区域一侧进行支撑；和
第二折环，与振动板远离中空区域一侧连接，用以对振动板远离中空区域一侧进行支撑。
第二方面，本申请实施例还提供一种无源辐射器音箱，包括无源辐射器，所述无源辐射器围合形成中空区域；所述无源辐射器包括：
振动板，以环绕所述中空区域的方式设置，用以做振动运动；
第一折环，与所述振动板靠近所述中空区域一侧连接，用以对所述振动板靠近所述中空区域一侧进行支撑；和
第二折环，与所述振动板远离所述中空区域一侧连接，用以对所述振动板远离所述中空区域一侧进行支撑，所述第一折环的开口方向与所述第二折环的开口方向一致；
第一内缘部，设置于所述第一折环靠近所述中空区域一侧，所述第一内缘部环绕所述第一折环设置；和
第一外缘部，设置于所述第二折环远离所述中空区域一侧，所述第一外缘部环绕所述第二折环设置。
 有益效果
本申请中，第一折环设置于振动板靠近所述中空区域一侧，第二折环设置于振动板远离所述中空区域一侧，使得第一折环及第二折环以包围振动板设置的方式支撑振动板，保持振动板的平衡性及稳定性，使得振动板在大动态的谐振空气的作用下也能够保持线性振动，避免因晃动或摆动等非线性振动导致的声压失真情况。
 附图说明
图1为本申请实施例提供的第一种无源辐射器的整体结构示意图。
图2为图1所示的无源辐射器的俯视图。
图3为图2所示的无源辐射器沿P1-P1方向的剖视图。
图4为图2所示的无源辐射器的右视图。
图5为图4所示的无源辐射器的沿P2-P2方向的剖视图。
图6为图5所示的无源辐射器的剖视图拿掉负重块后的结构示意图。
图7为图5中所示的负重块的结构示意图。
图8为本申请实施例提供的第二种无源辐射器的整体结构示意图。
图9为图8所示的无源辐射器沿P3-P3方向的剖视图。
图10为图8所示的无源辐射器沿P4-P4方向的剖面图。
图11为本申请实施例提供的第三种无源辐射器的整体结构示意图。
图12为图11所示的无源辐射器沿P5-P5方向的剖视图。
图13为图11所示的无源辐射器沿P6-P6方向的剖面图。
图14为本申请实施例提供的第一种无源辐射器音箱的整体结构示意图。
图15为图14所示无源辐射器音箱的第一爆炸图。
图16为图14所示无源辐射器音箱的第二爆炸图。
图17为图14所示无源辐射器音箱的主视图。
图18为图17所示无源辐射器音箱沿P7-P7方向的剖视图。
图19为本申请实施例提供的第二种无源辐射器音箱的剖视图。
图20为本申请实施例提供的第三种无源辐射器音箱的剖视图。
图21为本申请实施例提供的第四种无源辐射器音箱的剖视图。
图22为本申请实施例提供的第五种无源辐射器音箱的剖视图。
图23为本申请实施例提供的第六种无源辐射器音箱的剖视图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有付出创造性劳动前提下所获得的所有其他实施例，都属于本申请的保护范围。
请参阅图1-图13，本申请实施例提供一种无源辐射器20。
请参阅图1、图8和图11，无源辐射器20包括振动板22、第一折环24和第二折环26。无源辐射器20围合形成中空区域201。其中，振动板22以环绕中空区域201的方式设置，用以做振动运动。第一折环24与振动板22靠近中空区域201一侧连接，用以对振动板22靠近中空区域201一侧进行支撑。第二折环26与振动板22远离中空区域201一侧连接，用以对振动板22远离中空区域201一侧进行支撑。
可以理解的是，请参阅图1-图3、图8-图13，第一折环24的开口方向与第二折环26的开口方向一致。
可以理解的是，请参阅图1-图3、图8-图13，第一折环24设置于振动板22靠近中空区域201一侧，第二折环26设置于振动板22远离中空区域201一侧，使得第一折环24及第二折环26以包围振动板22设置的方式支撑振动板22，保持振动板22的平衡性及稳定性，使得振动板22在大动态的谐振空气的作用下也能够保持线性振动，避免因晃动或摆动等非线性振动导致的声压失真情况。需要解释说明的是，振动板22做线性振动是指振动板22沿一振动轴线做反复运动。
可以理解的是，请参阅图1-图3、图8-图13，振动板22包括负重块223，负重块223用以承担或调节振动板22的振动质量，从而增强低频声压，使得声音更为饱满。
可以理解的是，请参阅图4-图7，振动板22还包括振动膜225和容纳腔室227，容纳腔室227形成于振动膜225内部，容纳腔室227以环绕中空区域201的方式设置；负重块223设置于容纳腔室227；容纳腔室227的内壁与负重块223表面紧密贴合，用以防止声压因负重块223相对于容纳腔室227滑动而失真。
可以理解的是，若负重块223相对于容纳腔室227移动，会引起振动板22做非线性振动而导致声压失真。而容纳腔室227的内壁与负重块223表面紧密贴合，用以防止负重块223在大动态的谐振空气的作用下相对于容纳腔室227移动，从而振动板22保持线性振动，声压不会失真。
可以理解的是，请继续参阅图4-图7，负重块223靠近中空区域201的一侧为内缘侧2232，负重块223远离中空区域201的一侧为外缘侧2233；内缘侧2232设有多个均匀分布的内缘缺口2234，外缘侧2233设有多个均匀分布的外缘缺口2235。
可以理解的是，容纳腔室227包括多个第一凸起部2273，第一凸起部2273与内缘缺口2234一一对应，第一凸起部2273伸入并填满内缘缺口2234，第一凸起部2273用以对内缘缺口2234进行限位；容纳腔室227还包括多个第二凸起部2275，第二凸起部2275与外缘缺口2235一一对应，第二凸起部2275伸入并填满外缘缺口2235，第二凸起部2275用以对外缘缺口2235进行限位。
可以理解的是，第一凸起部2273用以对内缘缺口2234进行限位，第二凸起部2275用以对外缘缺口2235进行限位，以防止内缘缺口2234相对于第一凸起部2273发生位移，以及防止外缘缺口2235相对于第二凸起部2275发生位移，进而能够防止负重块223在大动态的谐振空气的作用下相对于容纳腔室227移动，从而振动板22保持线性振动，声压不会失真。
还可以理解的是，负重块223通过设置内缘缺口2234和外缘缺口2235，能够使负重块223的重量调整至需要的重量范围内。
可以理解的是，请继续参阅图4-图7，多个内缘缺口2234的个数与多个外缘缺口2235的个数相同，内缘缺口2234的形状及尺寸与外缘缺口2235的形状及尺寸相同，多个内缘缺口2234及多个外缘缺口2235沿中空区域201的周向方向以内缘缺口2234、外缘缺口2235、内缘缺口2234、外缘缺口2235的顺序依次排布，用以使负重块223的重量均匀分布，使振动膜225均匀承受负重块223的重量，从而保持振动膜225的平衡性及稳定性，使得振动膜225在大动态的谐振空气的作用下也能够保持线性振动。
可以理解的是，请参阅图4-图7，中空区域201为圆形区域；振动板22为圆环体，振动膜225为橡胶材质；负重块223为设有内缘缺口2234及外缘缺口2235的圆环体。负重块223可以为金属材质。
可以理解的是，请参阅图1-图3和图11-图18，无源辐射器20还包括第一内缘部23和第一外缘部25。第一内缘部23设置于第一折环24靠近中空区域201一侧，第一内缘部23环绕第一折环24设置。第一外缘部25设置于第二折环26远离中空区域201一侧，第一外缘部25环绕第二折环26设置。
可以理解的是，请参阅图1-图10，本申请实施例提供了多种结构不同的无源辐射器20。
请参阅图1-图7，本申请实施例提供的第一种结构的无源辐射器20，包括振动板22。振动板22包括振动膜225和负重块223。振动膜225内形成有容纳腔室227。负重块223设置于容纳腔室227。
请参阅图8-图10，本申请实施例提供的第二种结构的无源辐射器20，包括振动板22。振动板22包括振动膜225和负重块223。振动膜225包括相背设置的第一侧面2252和第二侧面2254。第二侧面2254朝向第一侧面2252的方向与第一折环24的开口方向为同一方向。负重块223粘接于第一侧面2252。
请参阅图11-图13，本申请实施例提供的第三种结构的无源辐射器20，包括振动板22。振动板22包括振动膜225和负重块223。振动膜225包括相背设置的第一侧面2252和第二侧面2254。第二侧面2254朝向第一侧面2252的方向与第一折环24的开口方向为同一方向。负重块223粘接于第二侧面2254。
请参阅图14-图23，本申请实施例还提供一种无源辐射器音箱10。无源辐射器音箱10包括无源辐射器20。无源辐射器20是被动发声单元，能够用以调整低音。无源辐射器音箱10的整体音色通过无源辐射器20能够得到调节。负重块223用以改善无源辐射器音箱10的谐振，降低无源辐射器音箱10在工作时产生的加速度，使得作为无源辐射器音箱10作为部件装配于电视机或笔记本电脑时能够有效降低振音风险。可以理解的是，请参阅图15、图16和图18-图23，无源辐射器音箱10还包括发音主体40和支架60。发音主体40被配置为将电能转化为声能。可以理解的是，发音主体40通电后先将电能转化为机械能，再将机械能转化为声能。无源辐射器20设置于支架60。支架60用于固定无源辐射器20，防止无源辐射器20塌陷。支架60围合形成第一容纳空间62，发音主体40设置于第一容纳空间62；支架60用以支撑发音主体40和无源辐射器20。发音主体40位于无源辐射器20朝向第一方向H1一侧。
可以理解的是，发音主体40包括沿共同的中心轴线依次设置的鼓纸402、弹波404、音圈406、铁片408、第一磁铁403、第二磁铁405及U铁407。第一内缘部23与第二开口端4024连接，第一内缘部23用以支撑第二开口端4024使得鼓纸402得以支撑。在一些实施例中，支架60与发音主体40被配置为沿中心轴线设置。需要说明的是，为了方便描述的目的，将无源辐射器20朝向第一容纳空间62的方向定义为第一方向H1。将无源辐射器20朝向第一容纳空间62的方向的反方向定义为第二方向H2。
可以理解的是，在一些实施例中，请参阅图19、图21和图23，第一折环24及第二折环26的开口方向朝向第一方向H1。在另一些实施例中，请参阅图18、图20和图22，第一折环24及第二折环26的开口方向朝向第二方向H2。
可以理解的是，请参阅图15、图16和图18-图23，发音主体40包括鼓纸402。鼓纸402还可以称为振动板、锥盆，对无源辐射器音箱10的性能和音质有决定性的影响。鼓纸402包括相对且间隔设置的第一开口端4022和第二开口端4024。第一开口端4022的中心轴线、第二开口端4024的中心轴线与第一内缘部23的中心轴线共线。第一开口端4022的口径大于第二开口端4024的口径。第一开口端4022与第一内缘部23连接。第二开口端4024位于第一开口端4022朝向第一方向H1一侧；第一外缘部25与支架60连接。
可以理解的是，请参阅图15、图16和图18-图23，发音主体40还包括音圈406。音圈406导电后，在磁场之内产生运动，从而带动鼓纸402振动。音圈406包括相对且间隔设置的第三开口端4062和第四开口端4064。第三开口端4062的中心轴线、第四开口端4064的中心轴线与第一内缘部23的中心轴线共线。第三开口端4062以插入第二开口端4024的方式设置，且第三开口端4062位于第一开口端4022与第二开口端4024之间，第二开口端4024与音圈406的外壁连接；第四开口端4064位于第三开口端4062朝向第一方向H1一侧。
可以理解的是，请参阅图15、图16和图18-图23，发音主体40还包括弹波。弹波环绕音圈406设置。弹波位于第二开口端4024朝向第一方向H1一侧。弹波还位于第四开口端4064朝向第一方向H1的反向一侧。弹波包括弹波本体4042、第二内缘部4044和第二外缘部4046。弹波本体4042为端面呈波浪形的环状片体第二内缘部4044位于弹波本体4042靠近音圈406一侧，且与音圈406的外壁连接。第二外缘部4046环绕音圈406设置，位于弹波本体4042远离音圈406一侧。弹波本体4042，第二内缘部4044的中心轴线、第二外缘部4046的中心轴线与第一内缘部23的中心轴线共线。
弹波404还可以称为定心支片，具有制动作用和中心保持作用。弹波404的外缘和支架60粘在一起，弹波404的颈部和音圈406及鼓纸402的颈部粘在一起，它可以使音圈406在磁隙内运动时，不致磁到铁片408及第一磁铁403和第二磁铁405，也使音圈406和鼓纸402正确连接保持中心，故亦有称之为中心保持器的。弹波404的性能和鼓纸402的凸缘相似，对低音谐振F0产生影响，且对鼓纸402的连接有适度的弹性辅助作用，并可控制鼓纸402的模方向的运作。
可以理解的是，请参阅图15、图16和图18-图23发音主体40还包括铁片408。铁片408设置于音圈406围合形成的第二容纳空间4066；铁片408的中心轴线与第一内缘部23的中心轴线共线。
铁片408也可以称为铁板、华司或上片。在磁气回路中，铁片408起到导磁作用，能将第一磁铁403及第二磁铁405的N极与S极通过回路集中到间隙，使间隙产生较强的磁场，而音圈406的卷幅刚好位于间隙正中，故铁片408的内径、厚度非常重要。铁片408可以铆接固定在它们的接合处再用胶补强，以防止无源辐射器音箱10在工作时气流从铆接之间的缝隙内挤出，产生气流声不良即漏风。
可以理解的是，请参阅图15、图16和图18-图23，发音主体40还包括第一磁铁403。第一磁铁403设置于第二容纳空间4066。第一磁铁403位于铁片408朝向第一方向H1一侧。铁片408与第一磁铁403层叠设置。第一磁铁403的中心轴线与第一内缘部23的中心轴线共线。
可以理解的是，请参阅图15、图16和图18-图23，发音主体40还包括第二磁铁405。第二磁铁405的一部分位于第二容纳空间4066内。第二磁铁405的另一部分位于第二容纳空间4066外。第二磁铁405位于第一磁铁403朝向第一方向H1一侧。第二磁铁405与第一磁铁403层叠设置。第二磁铁405的中心轴线与第一内缘部23的中心轴线共线。
第一磁铁403和第二磁铁405用以产生磁场，音圈406置于磁场中，当音圈406中通过音频电流，这个电流就会受到磁场的作用力，使音圈406产生振动，带动与音圈406粘在一起的鼓纸402振动发出声音。
可以理解的是，请参阅图15、图16和图18-图23，发音主体40还包括U铁407。U铁407与支架60连接。U铁407包括底壁4072和侧壁4074。底壁4072和侧壁4074围合形成第三容纳空间4076。音圈406以第四开口端4064插入第三容纳空间4076的方式设置。第二磁铁405远离第一磁铁403一侧与底壁4072连接设置。U铁407的中心轴线与第一内缘部23的中心轴线共线。
U铁407也可以称为电工铁，它的质地为纯铁，为声音单元的组成部件。U铁407的主要作用为在通电的情况下导磁，但是它没有剩磁。无源辐射器音箱10断电后磁场消失，它的磁性也立即消失。因此，U铁的纯度会直接影响到声音单元的工作效率以及井线性失真的一些重要的参数。与U铁相关的是夹板，两者共同为声音单元的组成部件。而夹板的厚度直接影响到声音单元的冲程，对于长冲程单元来说，U铁和夹板都非常厚，它们基本可以让音圈的整个行程做切割磁感线运动。夹板和U铁的间隙越小音圈运动所需要的功率就越小，声音单元的效率就越高。
可以理解的是，请参阅图15、图16和图18-图23，无源辐射器音箱10还包括壳体50。壳体50围合形成第四容纳空间56。支架60及发音主体40设置于第四容纳空间56。可以理解的是，壳体50包括相互连接的第一壳体52和第二壳体54。第一壳体52和第二壳体54可以通过螺丝锁附连接。第一壳体52也可以称为下壳体，第二壳体54也可以称为上壳体。第一壳体52和第二壳体54可以通过超声波焊接，外加锁螺丝的工艺密封。第一壳体52和第二壳体54，用以防止声短路，避免背面的声音与前面的声音相互抵消或者互相干涉，还能抑制无源辐射器音箱10谐振。
可以理解的是，请参阅图18-图23，本申请实施例提供了多种结构不同的无源辐射器音箱10。
请参阅图18，本申请实施例提供的第一种结构的无源辐射器音箱10，包括图1-图3所示的第一种结构的无源辐射20，第一折环24的开口方向和第二折环26的开口方向朝向第一方向H2。
请参阅图19，本申请实施例提供的第二种结构的无源辐射器音箱10，包括图1-图3所示的第一种结构的无源辐射器20，第一折环24的开口方向和第二折环26的开口方向朝向第一方向H1。
请参阅图20，本申请实施例提供的第三种结构的无源辐射器音箱10，包括图8-图10所示的第二种结构的无源辐射器20，第一折环24的开口方向和第二折环26的开口方向朝向第二方向H2。
请参阅图21，本申请实施例提供的第四种结构的无源辐射器音箱10，包括图8-图10所示的第二种结构的无源辐射器20，第一折环24的开口方向和第二折环26的开口方向朝向第一方向H1。
请参阅图22，本申请实施例提供的第五种结构的无源辐射器音箱10，包括图11-图13所示的第三种结构的无源辐射器20，第一折环24的开口方向和第二折环26的开口方向朝向第二方向H2。
请参阅图23，本申请实施例提供的第六种结构的无源辐射器音箱10，包括图11-图13所示的第三种结构的无源辐射器20，第一折环24的开口方向和第二折环26的开口方向朝向第一方向H1。
请参阅图14-图23，无源辐射器音箱10还包括接线端子30和电线80。电线80用以连通扬声器及功放输出端子。接线端子30用以将外界的信号传送到导线，然后进入音圈406，使线圈获得电流。
请参阅图14-图23，无源辐射器音箱10还包括附件70，附件70包括防尘帽702、第一装饰圈704、第二装饰圈706及胶垫708。防尘帽702，用以防止尘灰颗粒进入音圈406，避免因尘灰颗粒进入音圈406而影响音圈406以及无源辐射器音箱10的正常运作；还可以起到抑制无源辐射器音箱10的分割振动。第一装饰圈704和第二装饰圈706为了美观而设计的装饰圈，材质可以是阳极氧化的铝制CD纹，PP材质等。第一装饰圈704粘接于鼓纸402和无源辐射器20的连接处。第二装饰圈706粘接于无源辐射器20的振动板22。胶垫708，用以降低音箱加速度，起到缓冲及抑制振音的作用。胶垫708的材质可以是硅胶或橡胶等。
以上对本申请实施例所提供的无源辐射器及音箱进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种无源辐射器，所述无源辐射器围合形成中空区域；所述无源辐射器包括：
    振动板，以环绕所述中空区域的方式设置，用以做振动运动；
    第一折环，与所述振动板靠近所述中空区域一侧连接，用以对所述振动板靠近所述中空区域一侧进行支撑；和
    第二折环，与所述振动板远离所述中空区域一侧连接，用以对所述振动板远离所述中空区域一侧进行支撑。
  2. 根据权利要求1所述的无源辐射器，其中，所述第一折环的开口方向与所述第二折环的开口方向一致。
  3. 根据权利要求2所述的无源辐射器，其中，所述振动板包括负重块，所述负重块用以承担或调节所述振动板的振动质量，从而增强低频声压。
  4. 根据权利要求3所述的无源辐射器，其中，所述振动板还包括振动膜和容纳腔室，所述容纳腔室形成于所述振动膜内部，所述容纳腔室以环绕所述中空区域的方式设置；所述负重块设置于所述容纳腔室；所述容纳腔室的内壁与所述负重块表面紧密贴合，用以防止声压因所述负重块相对于所述容纳腔室滑动而失真。
  5. 根据权利要求4所述的无源辐射器，其中，所述负重块靠近所述中空区域的一侧为内缘侧，所述负重块远离所述中空区域的一侧为外缘侧；所述内缘侧设有多个均匀分布的内缘缺口，所述外缘侧设有多个均匀分布的外缘缺口；
    所述容纳腔室包括多个第一凸起部，所述第一凸起部与所述内缘缺口一一对应，所述第一凸起部伸入并填满所述内缘缺口，所述第一凸起部用以对所述内缘缺口进行限位；所述容纳腔室还包括多个第二凸起部，所述第二凸起部与所述外缘缺口一一对应，所述第二凸起部伸入并填满所述外缘缺口，所述第二凸起部用以对外缘缺口进行限位。
  6. 根据权利要求5所述的无源辐射器，其中，所述多个内缘缺口的个数与所述多个外缘缺口的个数相同，所述内缘缺口的形状及尺寸与所述外缘缺口的形状及尺寸相同，所述多个内缘缺口即所述多个外缘缺口沿所述中空区域的周向方向以所述内缘缺口、所述外缘缺口、所述内缘缺口、所述外缘缺口的顺序依次排布，用以使所述负重块的重量均匀分布，使所述振动膜均匀承受所述负重块的重量，从而保持振动膜的平衡性及稳定性，使得振动膜在大动态的谐振空气的作用下也能够保持线性振动。
  7. 根据权利要求6所述的无源辐射器，其中，所述中空区域为圆形区域；所述振动板为圆环体，所述振动膜为橡胶材质；所述负重块为设有所述内缘缺口及所述外缘缺口的圆环体，所述负重块为金属材质。
  8. 根据权利要求2所述的无源辐射器，其中，所述振动板包括振动模和负重块；所述振动模包括相背设置的第一侧面和第二侧面；所述第二侧面朝向所述第一侧面的方向与所述第一折环的开口方向为同一反向；所述负重块粘接于所述第一侧面或者所述负重块粘接于所述第二侧面。
  9. 根据权利要求2所述的无源辐射器，其中，还包括：
    第一内缘部，设置于所述第一折环靠近所述中空区域一侧，所述第一内缘部环绕所述第一折环设置；和
    第一外缘部，设置于所述第二折环远离所述中空区域一侧，所述第一外缘部环绕所述第二折环设置。
  10. 一种无源辐射器音箱，其包括无源辐射器，所述无源辐射器围合形成中空区域；所述无源辐射器包括：
    振动板，以环绕所述中空区域的方式设置，用以做振动运动；
    第一折环，与所述振动板靠近所述中空区域一侧连接，用以对所述振动板靠近所述中空区域一侧进行支撑；和
    第二折环，与所述振动板远离所述中空区域一侧连接，用以对所述振动板远离所述中空区域一侧进行支撑，所述第一折环的开口方向与所述第二折环的开口方向一致；
    第一内缘部，设置于所述第一折环靠近所述中空区域一侧，所述第一内缘部环绕所述第一折环设置；和
    第一外缘部，设置于所述第二折环远离所述中空区域一侧，所述第一外缘部环绕所述第二折环设置。
  11. 根据权利要求10所述的无源辐射器音箱，其中，还包括：
    发音主体，所述发音主体被配置为将电能转化为声能；
    支架，所述无源辐射器设置于所述支架；所述支架围合形成第一容纳空间，所述发音主体设置于所述第一容纳空间；所述支架用以支撑所述发音主体和所述无源辐射器；
    其中，所述发音主体位于所述无源辐射器朝向第一方向一侧，所述第一方向为所述无源辐射器朝向所述第一容纳空间的方向。
  12. 根据权利要求11所述的无源辐射器音箱，其中，所述第一折环的开口方向和所述第二折环的开口方向朝向第一方向；或者
    所述第一折环的开口方向和所述第二折环的开口方向朝向第二方向；所述第二方向为所述第一方向的反方向。
  13. 根据权利要求12所述的无源辐射器音箱，其中，所述发音主体包括鼓纸，所述鼓纸包括相对且间隔设置的第一开口端和第二开口端；所述第一开口端的中心轴线、所述第二开口端的中心轴线与所述第一内缘部的中心轴线共线；所述第一开口端的口径大于所述第二开口端的口径；所述第一开口端与所述第一内缘部连接；所述第二开口端位于所述第一开口端朝向所述第一方向一侧；所述第一外缘部与所述支架连接。
  14. 根据权利要求13所述的无源辐射器音箱，其中，所述发音主体还包括音圈；所述音圈包括相对且间隔设置的第三开口端和第四开口端；所述第三开口端的中心轴线、所述第四开口端的中心轴线与所述第一内缘部的中心轴线共线；所述第三开口端以插入所述第二开口端的方式设置，且所述第三开口端位于所述第一开口端与所述第二开口端之间，所述第二开口端与所述音圈的外壁连接；所述第四开口端位于所述第三开口端朝向所述第一方向一侧。
  15. 根据权利要求14所述的无源辐射器音箱，其中，所述发音主体还包括弹波；所述弹波环绕所述音圈设置；所述弹波位于所述第二开口端朝向所述第一方向一侧；所述弹波还位于所述第四开口端朝向所述第一方向的反向一侧；所述弹波包括：
    弹波本体，为端面呈波浪形的环状片体；
    第二内缘部，位于所述弹波本体靠近所述音圈一侧，且与所述音圈的外壁连接，和
    第二外缘部，环绕所述音圈设置，位于所述弹波本体远离所述音圈一侧；
    所述弹波本体，所述第二内缘部的中心轴线、所述第二外缘部的中心轴线与所述第一内缘部的中心轴线共线。
  16. 根据权利要求15所述的无源辐射器音箱，其中，所述发音主体还包括铁片；所述铁片设置于所述音圈围合形成的第二容纳空间；所述铁片的中心轴线与所述第一内缘部的中心轴线共线。
  17. 根据权利要求16所述的无源辐射器音箱，其中，所述发音主体还包括第一磁铁；所述第一磁铁设置于所述第二容纳空间；所述第一磁铁位于所述铁片朝向所述第一方向一侧，所述铁片与所述第一磁铁层叠设置；所述第一磁铁的中心轴线与所述第一内缘部的中心轴线共线。
  18. 根据权利要求17所述的无源辐射器音箱，其中，所述发音主体还包括第二磁铁；所述第二磁铁的一部分位于所述第二容纳空间内，所述第二磁铁的另一部分位于所述第二容纳空间外；所述第二磁铁位于所述第一磁铁朝向所述第一方向一侧，所述第二磁铁与所述第一磁铁层叠设置；所述第二磁铁的中心轴线与所述第一内缘部的中心轴线共线。
  19. 根据权利要求18所述的无源辐射器音箱，其中，所述发音主体还包括U铁，所述U铁与所述支架连接；所述U铁包括底壁和侧壁；所述底壁和所述侧壁围合形成第三容纳空间；所述音圈以所述第四开口端插入所述第三容纳空间的方式设置，所述第二磁铁远离所述第一磁铁一侧与所述底壁连接设置；所述U铁的中心轴线与所述第一内缘部的中心轴线共线。
  20. 根据权利要求11所述的无源辐射器音箱，其中，还包括壳体，所述壳体围合形成第四容纳空间，所述支架及所述发音主体设置于所述第四容纳空间。
PCT/CN2022/130349 2021-11-19 2022-11-07 无源辐射器及音箱 WO2023088123A1 (zh)

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CN201813524U (zh) * 2010-09-26 2011-04-27 北京爱德发科技有限公司 无源辐射器
CN210042183U (zh) * 2019-05-31 2020-02-07 惠阳东亚电子制品有限公司 扬声器
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CN201813524U (zh) * 2010-09-26 2011-04-27 北京爱德发科技有限公司 无源辐射器
CN210042183U (zh) * 2019-05-31 2020-02-07 惠阳东亚电子制品有限公司 扬声器
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